Ratings & Reviews for Bar’s Leaks Bars Leaks Liquid Aluminum Radiator and Heater Core Cooling System Radiator Stop Leak 16.9 oz
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this leak sealant for effectively stopping radiator and heater core leaks, with many reporting results within minutes or hours of use. Reviewers highlight its ability to eliminate coolant loss, restore heater function, and prevent overheating, particularly for hard-to-find leaks. Most value it as an affordable, easy-to-use alternative to costly replacements, especially for older vehicles or emergency situations. Many express strong brand loyalty, noting years of reliable use across multiple vehicles. A few mention it works best for minor leaks and should not replace professional repairs for severe damage, but this barely diminishes the overwhelming positive consensus.
Customer review summary generated by AI, including incentivized reviews.Amazing product
Would Recommend[This review was collected as part of a promotion.] I bought today and it was amazing I will definitely be back
From Rislone
Save the day on the road dropped two in a Cummins
Would Recommend[This review was collected as part of a promotion.] Used it in a Semi truck with Cummms ISX15 saved a day
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Barr’s leaks Jack oil
Would RecommendGreat product for floor jack to help keep working.
From Rislone
Bard is gresg
Would Recommend[This review was collected as part of a promotion.] I bought this a month ago not knowing exactly how well it will work. It’s been great my radiator no longer leaks
From Rislone
Awesome product
Would Recommend[This review was collected as part of a promotion.] It fixed my radiators just like it said it would, I’m very happy with it.
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Bar product
Would Recommend[This review was collected as part of a promotion.] The bar product is a great product I really like the bar name it's new to our family we now use bar products
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Works Great
Would Recommend[This review was collected as part of a promotion.] I used this stop leak and had excellent results. 10/10 very grateful for the product!
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Radiator fix
Would RecommendUsed this in my vans radiator and haven’t had any leaks since. Highly recommend
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Bar leaks liquid
Would Recommend[This review was collected as part of a promotion.] It's a good product.very positive results,No more leaks
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Works great
Would RecommendI had a small leak in my radiator and bought this to stop it. It worked!!!
From Rislone
easy to follow directions
Would Recommendmy 1997 Thunderbird was leaking at heater core, with just one time use the leak stopped and heater is working good as new!
From Rislone
Stops leaks
Would Recommend[This review was collected as part of a promotion.] Used it on my radiator with a small dribble leak and it fixed it super quick
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Works perfectly exactly what I needed
Would RecommendBought this about a month ago a month and a half ago and I'm so happy that I didn't have to change the entire radiator thank you very much for making this product
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Great product
Would Recommend[This review was collected as part of a promotion.] Bought it for our 350k mile Prius and sealed the leaking head gasket!
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Rated good
Would Recommend[This review was collected as part of a promotion.] I bought this and put in my jeep and got though the 10 months I needed to save up get new car so it did its job .
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Radiator sealer
Would Recommend[This review was collected as part of a promotion.] I bought this product awhile ago and it’s been a great success in my vehicle!! Such a life saver!!!
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Heater core stop leak
Would RecommendUse this 3 weeks ago so far no leaks. I think just did the job
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Not nought information provided
Would Not Recommend[This review was collected as part of a promotion.] The instructions were pretty vague, it wasn't for me.
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Working excellent
Would RecommendBought in a hurry half expecting it not to work but working exactly as described
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Worked Great
Would RecommendI was in PA on fracking job and a little bitty rock chip so tiny put leak in radiator, pin hole leak I used two bottles to get me through next few days and it worked great I got to finish the job without loosing money and afterwards had everything replaced new radiator product worked great for my situation
From Rislone